Overview
The AD640JN is a special Purpose Amplifier made by Analog Devices in a PDIP-20 package with 20 pins. 0℃~+70℃ Logarithmic Amplifier On-chip temperature compensation、Signal limiting/constant amplitude output PDIP-20 Special Purpose Amplifiers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AD640JN, from EasyEDA) and its footprint (Package_DIP:DIP-20_W7.62mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C4370950).
Symbol
Footprint
Parameters
3- Amplifier Type
- Logarithmic Amplifier
- Features
- Signal limiting/constant amplitude output；On-chip temperature compensation
- Operating Temperature
- 0℃~+70℃
Order codes
1- AD640JNLCSC C4370950
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | SIG–IN | Unspecified |
| 2 | ATN_LO | Unspecified |
| 3 | ATN_COM | Unspecified |
| 4 | ATN_COM | Unspecified |
| 5 | ATN_IN | Unspecified |
| 6 | BL1 | Unspecified |
| 7 | –VS | Unspecified |
| 8 | ITC | Unspecified |
| 9 | BL2 | Unspecified |
| 10 | SIG–OUT | Unspecified |
| 11 | SIG+OUT | Unspecified |
| 12 | +VS | Unspecified |
| 13 | LOG_COM | Unspecified |
| 14 | LOG_OUT | Unspecified |
| 15 | RG2 | Unspecified |
| 16 | RG0 | Unspecified |
| 17 | RG1 | Unspecified |
| 18 | CKT_COM | Unspecified |
| 19 | ATN_OUT | Unspecified |
| 20 | SIG+IN | Unspecified |
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Is there a KiCad symbol and footprint for the AD640JN?
Yes. The symbol is EasyEDA_Cloud:AD640JN and the footprint Package_DIP:DIP-20_W7.62mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the AD640JN?
PDIP-20, with 20 pins. Its footprint is drawn on this page.
Where is the AD640JN datasheet?
Analog Devices publishes it: the Datasheet link on this page opens it.
Where can I order the AD640JN?
JLCPCB lists it as part C4370950, with 0 in stock; the sellers' links on this page open their listings.
What can replace the AD640JN?
Parts like it in the library: the AD641ANZ by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.
